It has been about two weeks since returning home from Camp Everfree and everyone has settled down for summer vacation.
Except for Sunset Shimmer, because she has a problem. She knows she can hear people's thoughts but that's just the problem: they're getting louder and more frequent. On top of that, she's becoming aware of things only one other person has been constantly experiencing (and is somehow okay with it?).
Determined to fix her problem, Sunset has finally opened up to her friends and they're more than happy to help her out. However, things don't quite go as planned and everything deteriorates further on. It's that bad.